Lubricator



(NoModel.)

J. ELLIS.

LUBRIGATR.

No. 368,283. Patented Aug. 16, 1887.

VV/TNESSES @ZM 67.. @am/Ld UNITED STATES PATENT OFFICE.

JOHN ELLlS, OF LYNN, MASSACHUSETTS.

LU B RICATO R.

SPECIFICATION forming part of Letters Patent No. 368,283, dated August16, 1887.

Application filed October 30, 1886. Serial No. 217,602. (No model.)

To all whom it may concern.

Be it known that l, JOHN ELLIS, of Lynn, in the county of Essex andState of Massachusetts, have invented certain new and usel'ulImprovements in Lubricators for Cylinders ot' Steam-Engines, of whichthe following is a full, clear, and exact description.

This invention relates to improvements in lubricators particularlyadapted for steameylinders of steam-engines; and the invention consistsof certain construction and arrangement of parts in a lubricators forsteam-cylinders of steam-engines for operation, all substantially ashereinafter fully described, reference being had to the accompanyingsheet of drawings, in which* Figure l is a side view of a lubricator fora steam-cylinder of a steamengine constructed and arranged for operationin accordance with this invention, Fig. 2 being a central verticalsection on line 2 2, Fig. 4; Fig. 3, a detailside View of the lowerportion turned a quarter round from the view of Fig. l; Fig. 4, ahorizontal cross-section on line et 4, Fig. 2.

In the drawings, A represents a base having a circularupwardly-extending flange or rim, B, having an external screw thread, a,on which is screwed the cylinder or casing C, screwing down close uponthe shoulder b of the base to make a tight joint. This cylinder orcasing C is closed by its top D, which has a central opening, E, havingan internal screwthread, d, in which is screwed the screwplug F. Thenthe cylinder G is in place on the base A, it makes a chamber, G, for theoil, and it is filled at the opening Eby removing the plug F.

The base A has a downward central extension portion, H, its lower end,c, having an external screwthread, f, by which the lubricator can beattached to the steanrpi pe leading to the steam-cylinder, or to thesteam-eyl inder direct, as desired. This portion H has a centralvertical passa-ge, g, which extends from itsY end c up and through thebase, and in its upper end, h, is screwed or secured in any suitablemanner a small vertical pipe or tube, J. This pipe or tube J passes upthrough the bottom Z (to which it is secured) of a small closedcylinder, K, in the oil-chamber G, the upper end of the pipe terminatingnear the top m of the cylinder K. Secured to and extending through thetop m of this cylinder K is a tube or pipe, L, reaching from near thebottom Z nearly t-o the top D of the oil-chamsecured in any suitablemanner in a socket, r, 6o

in the base A, and it extends nearly to the top of the oilvchamber G,its upper end having a head or cap, q, adapted to be screwed thereon,and having perforations s through it. The cap can be made integral withthe tube in lieu ot' 65 detachable. It is preferable, however, to haveit detachable. This pipe or tube M communicates by the socket r with ashort horizontal passage, t, which opens intoa vertical passage, a,having a small tube, N, secured there` 7o in, its lower end projectinginto a vertical glass tube,P,seeured between a shoulder-,aand anexternal threaded sleeve or tube, Q, screwing up through an opening, R,in a side projection, S, ofthe lower portion, H, of the base,"7 5 nwhich holds the glass tube firmly and tightly in place. A passage, w,leads 'from the opening It below the sleeve Q into the central verticalpassage, g. The opening R, in which is screwed the sleeve Q, is closedat its bottom 8o end by a screw-plug, T. The horizontal passage t isreduced in area where it communicates with the socket or passage r,forming a seat, x, fora valve, U, on the end of a rod,V,

adapted to be screwed into the plug Z, screwed S5 in the sideprojection, W, and having the usual packed joint at y to preventleakage, the valve havinga head, X, by which to operate it.

Yis a screw-plug screwing into an opening in a ilu A which is screwedinto an o ien- .o

ga a 9 ing, c', in the base, by which the water oroil, die., can bewithdrawn from the chamber Gas desired.

The operation is as follows: Vith the lubrieator properly secured inplace on the steampipe leading to or on the steam-cylinder itself, asdesired, its chamber G is filled with oil, the screw-plugs Y and Fclosed, and the valve U opened, and steam then let in from thesteamcylinder to the passage g, which passes up roo through such passageinto the pipe J, out at its upper end into the chamber B ofthe smallcylinder K, lling the same and condensing therein, which condensationthen passes up .MMM

through the tube L, out at its upper end into the chamber G, down andthrough the oil to the bottom of the chamber, raising the oil in thechamber and forcing and pressing it through the perforationssin the capg, down through its pipe or tube M into the socket r, and passages belowin communication therewith to the tube N, from which it drops drop bydrop into the glass tube and sleeve Q, andv thence flows through thepassage R into the vertical passage gto the steam-cylinder andlubricates the necessary parts. The flow of the oil from the oil-chamberis controlled and regulated by the valve t by turning it out or in,according to the amount of oil desired to be passed to the cylinder.

When the oil-chamber becomes too full of the condensed steam,it can bedrawn off by unscrewing the plug Y.

Among the advantages of this invention may be mentioned the following:The condensingchamber B is of such large area or capacity in comparisonwith the area or capacity of its inlet and outlet tubes and with theirarrange ment for communication therewith that condensaton of the steamis 'insured to a great degrec; also, the receiving endof the outlet-tubefor the voil to pass to the steamcylinder,being at the top of theoil-chamber, insures the oil only passing through the same, as thecondensation is at or near the bottom of the oil-chamber, its perforatedend straining the oil, preventing dirt or sediment from passing into thetube, which is also prevented more or less by the upper end of the tubebeing at the top of the oil-chamber; also, the large diameter of thistube insures that the oil, which passes through it before it leaves thetube, will be come free, clear, and settled, and not mixed with foam,&c., which is caused more or less from the heating of the oil by thesteam;

The lubricator is made of brass or of any suitable material, and isadapted for lubrication of other machinery, as well as steam-cylindersof steam-engines particularly referred to; also, the parts can beconnected and secured together in any suitable manner other than asherein particularly shown.

Having thus described my invention, what I claim is l. In a lubricator,the conibinatiomwith its oil-chamber, of a steam-condensing chamberwithin said oil-chamber, having an inlet-tube in communication with asteam-supply extending nearly to the top of said condensing-chamber andan outlet-tube leading from near its bottom into the oil-chamber, andterminating near the top vof said oil-chamber.

2. In a lubricator, the combination, with its oil-chamber having anoutletnear its top, of a steam-condensing chamber within the oilchamber,having an inlet-tube in communication with a steam-supply extendingnearly to the top of said condensing-chamber and an outlet-tube leadingfrom near its bottom into the oil-chamber and terminating near the topof said oil-chamber.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JOHN ELLIS.

Witnesses:

EDWIN W. BROWN,

PERCY BRYANT.

